[INFO] fetching crate simvar_harness 0.1.0...
[INFO] checking simvar_harness-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate simvar_harness 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate simvar_harness 0.1.0
[INFO] finished tweaking crates.io crate simvar_harness 0.1.0
[INFO] tweaked toml for crates.io crate simvar_harness 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simvar_harness 0.1.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate simvar_harness 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05a27ed6a530e391730c6eee9666c6b745ef5935eb22d985c62609e9f0487396
[INFO] running `Command { std: "docker" "start" "-a" "05a27ed6a530e391730c6eee9666c6b745ef5935eb22d985c62609e9f0487396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05a27ed6a530e391730c6eee9666c6b745ef5935eb22d985c62609e9f0487396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a27ed6a530e391730c6eee9666c6b745ef5935eb22d985c62609e9f0487396", kill_on_drop: false }`
[INFO] [stdout] 05a27ed6a530e391730c6eee9666c6b745ef5935eb22d985c62609e9f0487396
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1d2bff750c85189afe2c5a8f662734d82e19bba72c615f6f6ee8a872dac2ab2
[INFO] running `Command { std: "docker" "start" "-a" "a1d2bff750c85189afe2c5a8f662734d82e19bba72c615f6f6ee8a872dac2ab2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking unicode-truncate v1.1.0
[INFO] [stderr]     Checking btparse v0.2.0
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking color-backtrace v0.7.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking signal-hook v0.3.17
[INFO] [stderr]     Checking flume v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking signal-hook-mio v0.2.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking switchy_random v0.1.3
[INFO] [stderr]     Checking switchy_time v0.1.3
[INFO] [stderr]     Checking ctrlc v3.4.6
[INFO] [stderr]     Checking pretty_env_logger v0.5.0
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling switchy_async_macros v0.1.3
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking tokio v1.45.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling instability v0.3.7
[INFO] [stderr]     Checking ratatui v0.29.0
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking switchy_async v0.1.3
[INFO] [stderr]     Checking switchy_tcp v0.1.3
[INFO] [stderr]     Checking switchy v0.1.3
[INFO] [stderr]     Checking simvar_utils v0.1.0
[INFO] [stderr]     Checking simvar_harness v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/logging.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let log_dir = PathBuf::from_str(".log").unwrap();
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/logging.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let log_dir = PathBuf::from_str(".log").unwrap();
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simvar_harness` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `simvar_harness` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a1d2bff750c85189afe2c5a8f662734d82e19bba72c615f6f6ee8a872dac2ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d2bff750c85189afe2c5a8f662734d82e19bba72c615f6f6ee8a872dac2ab2", kill_on_drop: false }`
[INFO] [stdout] a1d2bff750c85189afe2c5a8f662734d82e19bba72c615f6f6ee8a872dac2ab2